All Games and puzzles articles
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Games and puzzles4-mewn-llinell atomau, moleciwlau ac ïonau
Parwch y symbol neu’r diagram gronynnau â’r math o ronyn y mae’n ei gynrychioli. Y cyntaf i gael 4-mewn-llinell fydd yn ennill!
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Games and puzzlesAtoms, molecules and ions 4-in-a-line
Match the symbol or the particle diagram to the type of particle it represents. Get 4-in-a-line to win!
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Games and puzzlesPos rhesymeg ïonau | 14–16 oed
Pos rhesymeg hwyliog sy’n profi’r hyn mae’r dysgwyr yn ei gofio am y berthynas rhwng rhif grŵp cyfnodol a gwefr ïonau syml
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Games and puzzlesIons logic puzzle | 14–16 years
A fun logic puzzle which tests learners’ recollection of the relationship between periodic group number and charge on simple ions